Zhao Jie, Yang Dong, Zhao Yanxia, Cao Liping, Zhang Zhibin, Yang Xiao-Juan, Wu Biao
Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China.
Division of Solid State Electronics, Department of Engineering Sciences, Uppsala University, Uppsala 75237, Sweden.
Dalton Trans. 2016 Apr 25;45(17):7360-5. doi: 10.1039/c6dt00672h.
A tetraphenylethene (TPE)-decorated tripodal tris(urea) ligand was synthesized, which shows large emission enhancement when binding to an orthophosphate anion (PO4(3-)), but exhibits only weak or no fluorescence with other anions. The anion-binding and fluorescence properties were studied by X-ray crystal structure, NMR and fluorescence spectroscopy, and by DFT computations and the results demonstrate that the different fluorescence performance may be determined by the anion-binding modes (i.e., full- or half-encapsulation).
合成了一种由四苯乙烯（TPE）修饰的三脚架型三（脲）配体，该配体在与正磷酸根阴离子（PO4(3-)）结合时表现出大幅的发射增强，但与其他阴离子结合时仅显示微弱荧光或无荧光。通过X射线晶体结构、核磁共振和荧光光谱以及密度泛函理论计算研究了阴离子结合和荧光性质，结果表明不同的荧光性能可能由阴离子结合模式（即完全或半包裹）决定。
